Phonograph-record reproducer.



D. W. BRYANT. PHONUGRAPH REGORD RBPRODUOER. APPLICATION FILED JULY 5,1910.

1,126,382. Patented Jan.26,1915.

I mym Snow,

DALTdN W. BRYANT, OF CARBONDALE, PENNSYLVANIA.

P HONOGRAPH-RECORD REPRODUCER.

Specification of Letters Patent.

Patented J an. 26, 1915.

application filed July 5, 1e10,- Serial No. 570,444." 7

T all whom it may concern Be itknown that I, DALTON W. BRYANT,

a citizen of the United States, residing at Carbondal'e, in the county oftLackawanna and State of Pennsylvania, have invented new and useful Improvements in Phonograph-Record Reproducers, of which the following is a specification.

This-invention relates to a sound reproducing device, such for instance, as a phonograph reproducer, and relates more particularly to a connecting means between the stylus arm and diaphragm.

The invention has for one of its objects to improve the construction and operation of devices of this'character so that the life of the record will be materially prolonged, the reproduction of tones more accurately accomplished, and the usual screeching or scratching sounds eliminated.

Another object of the invention is to provid'e an improved link between the stylus arin and diaphragm which is flexible but non-elastic so thatvibrations will be efleo ti'vely transmitted from the record to the diaphragm Without any objectionable de fects present in those sound reproducing devices in which a steei link is employed.

In the reproducing of sounds by a sound reproducing device including a metallink between the stylus arm and diaphragm, by

changing a note of high vibration to one of lower vibration, the vibration of the diaphragm does not conform precisely to the record so that the diaphragm is not in barmony with the stylus arm, and at the time of the transition from one note to the other an impulse, which may be termed a kick back, is exerted on the stylus arm so that the stylus or sapphire thereof will dig into the record and produce wear on thelatter and besides this the metal link will cause a rattling sound at the joints between it and the'diaphragm and stylus arm.

I With these objects in view, and others as will appear as the description proceeds, the invention comprises the various features of construction and arrangement of parts which will be more fully described hereinafter and set forth with particularity in the claims appended hereto.

In the accompanying drawing which illustrates one embodiment of the invention 1 The figure is a central vertical section of a sound reproducing device used in connection with a cylinder record."

In the present instance I have elected to illustrate the nvention as applied to a cylinder record phonograph, but it is to be understood that it may be used in other sound reproducing devices.

Referring to the drawing, 1 designates the body or soundbox of the reproducing device.

Amplifying means is connected by a nippie 2 to the box 1, and in the latter is a dlaphragm 3 held between the gaskets 4 by a clamping ring 5 screwed into the box 1.

Hingedly' mounted onthe box 1 is a stylus carrier or weight 6, on which is fulcrumed, as at 7, a stylus arm 8. One

end of the arm carries the stylus or sap-' phire that rides on the record. The opposite end of the stylus arm is connected with the center of the diaphragm by a flexible non-elastic element 10 comprising a link constituted bytwo strands twisted tightly together as clearly shown in the drawings. Inpractice, it has been 'found that a pliable material, such as silk or linen, isespecially suitable for forming this connecting element. A link of silk, linen or the like permits the diaphragm to vibrate more in unison with the stylus arm and changing from onenote to another is not accompanied by a kicking back or impulse on the stylus arm which injuriously aii'ect therecord, and furthermore the link does not emit a rattling sound as does the usual metallic link that has its ends connected with the stylus arm and diaphragm. A fiber link of the character described lasts for a considerable period and prolongs the life of the record.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention relates, and while I'have de scribed the principle of operationof the invention, together with'the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as are within the scope of the claims.

Applicant is aware of a link comprising a single strand between the stylus and diaphragin, but a particular efiicacious result has been found to result from the use of a link Having thus described the invention what I claim as new is: t

1. In a sound reproducer, in combination Witha, diaphragm and stylus lever, of a con- 5 necting member therebetween comprising two twisted strands of flexible non-elastic material. r I

2. Ina sound reproducer,' in combination with 'a diaphragm and stylus lever, of a connecting member therebetw'een compris- .10 ing two twisted strands of flexible non-elastic fibrous material.

In testimon whereof I afiix my signature inpresence 0 two witnesses.

DALTON W. BRYAIPZT, IVitnesses:

ISAAC ATUT, v SALVATORE PUGLIANO.

Copies of this patent may be obtained for five cents each, by addressi the coinmissionefof rants. Washington, 1:. c." 

